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Proceedings Papers

Assessing Particle Concentration in the Breathing Zone of a Receptor Mannequin in an Indoor Environment

Amirmasoud Anvari, Goodarz Ahmadi
Proc. ASME. FEDSM2024, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC); Multiphase Flow (MFTC), V001T04A019, July 15–17, 2024
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2024-130877
https://doi.org/10.1115/FEDSM2024-130877
View Paper titled, Assessing Particle Concentration in the Breathing Zone of a Receptor Mannequin in an Indoor Environment
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Topics: Particulate matter, Turbulence, Ventilation
Proceedings Papers

Detachment of Triboelectrically Charged Bumpy Particles in Turbulent Flows

Abbas Khanmohammadi, Goodarz Ahmadi
Proc. ASME. FEDSM2024, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC); Multiphase Flow (MFTC), V001T04A018, July 15–17, 2024
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2024-130876
https://doi.org/10.1115/FEDSM2024-130876
View Paper titled, Detachment of Triboelectrically Charged Bumpy Particles in Turbulent Flows
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Topics: Adhesion, Particulate matter, Shear (Mechanics), Surface roughness, Turbulence
Proceedings Papers

Optimizing Ventilation Strategy for Enhanced Airborne Disease Control in the Intensive Care Unit

Koorosh Amininan, Mazyar Salmanzadeh, Goodarz Ahmadi
Proc. ASME. FEDSM2024, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC); Multiphase Flow (MFTC), V001T04A012, July 15–17, 2024
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2024-130679
https://doi.org/10.1115/FEDSM2024-130679
View Paper titled, Optimizing Ventilation Strategy for Enhanced Airborne Disease Control in the Intensive Care Unit
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Topics: Diseases, Ventilation
Proceedings Papers

Shear-Induced Lift Force on Micro-Fiber Deposition in Low Reynolds Number Flows

Lin Tian, Jiang Li, Goodarz Ahmadi, Arturo Javier Delgado-Gutiérrez
Proc. ASME. FEDSM2024, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC); Multiphase Flow (MFTC), V001T04A015, July 15–17, 2024
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2024-130807
https://doi.org/10.1115/FEDSM2024-130807
View Paper titled, Shear-Induced Lift Force on Micro-Fiber Deposition in Low Reynolds Number Flows
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Topics: Fibers, Flow (Dynamics), Lift (Fluid dynamics), Reynolds number, Shear (Mechanics), Ducts, Gravity (Force), Particulate matter, Rotation, Poiseuille flow
Proceedings Papers

Analysis of Flow Field Under Unsteady Breathing Conditions in a Realistic Human Nasal Cavity

Syeda Reham Shahed, Lin Tian, Jingliang Dong, Jiyuan Tu, Ya Zhang, Ruiping Ma, Goodarz Ahmadi
Proc. ASME. FEDSM2024, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC); Multiphase Flow (MFTC), V001T04A014, July 15–17, 2024
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2024-130803
https://doi.org/10.1115/FEDSM2024-130803
View Paper titled, Analysis of Flow Field Under Unsteady Breathing Conditions in a Realistic Human Nasal Cavity
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Topics: Cavities, Flow (Dynamics), Air flow, Dynamics (Mechanics), Particulate matter, Cancer, Computer software, Defense industry, Filters, Lung
Proceedings Papers

Study of Thixotropic Behavior of Non-Newtonian Fluids in Tool-Joints of Oil Wells

Ardeshir Gholami, Zohreh Mansoori, Majid Saffar Avval, Goodarz Ahmadi
Proc. ASME. FEDSM2022, Volume 2: Multiphase Flow (MFTC); Computational Fluid Dynamics (CFDTC); Micro and Nano Fluid Dynamics (MNFDTC), V002T04A012, August 3–5, 2022
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2022-87150
https://doi.org/10.1115/FEDSM2022-87150
View Paper titled, Study of Thixotropic Behavior of Non-Newtonian Fluids in Tool-Joints of Oil Wells
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Topics: Drilling, Fluids, Non-Newtonian fluids, Oil wells, Pressure, Thixotropy
Proceedings Papers

Four-Way Coupled Simulation of Proppants Flowing in Rock Fracture With Realistic Geometry- Hydraulic Fracturing Application

Farid Rousta, Goodarz Ahmadi, Dustin Crandall
Proc. ASME. FEDSM2022, Volume 2: Multiphase Flow (MFTC); Computational Fluid Dynamics (CFDTC); Micro and Nano Fluid Dynamics (MNFDTC), V002T04A016, August 3–5, 2022
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2022-87688
https://doi.org/10.1115/FEDSM2022-87688
View Paper titled, Four-Way Coupled Simulation of Proppants Flowing in Rock Fracture With Realistic Geometry- Hydraulic Fracturing Application
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Topics: Fracture (Materials), Fracture (Process), Geometry, Hydraulic fracturing, Rocks, Simulation, Flow (Dynamics), Particulate matter, Steady state, Computer software
Proceedings Papers

Ventilation System Performance on the Removal of Respiratory Droplets Emitted During Speaking

Morteza Ali Masoomi, Mazyar Salmanzadeh, Goodarz Ahmadi
Proc. ASME. FEDSM2022, Volume 2: Multiphase Flow (MFTC); Computational Fluid Dynamics (CFDTC); Micro and Nano Fluid Dynamics (MNFDTC), V002T04A019, August 3–5, 2022
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2022-87732
https://doi.org/10.1115/FEDSM2022-87732
View Paper titled, Ventilation System Performance on the Removal of Respiratory Droplets Emitted During Speaking
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Topics: Computational fluid dynamics, Diseases, Drops, Particulate matter, Simulation, Ventilation
Proceedings Papers

A Numerical Study on the Effect of Carrier Fluid Subgrid Scales Fluctuations on Deposition and Dispersion of Lagrangian Particles

Farid Rousta, Bamdad Lessani, Goodarz Ahmadi
Proc. ASME. FEDSM2022, Volume 2: Multiphase Flow (MFTC); Computational Fluid Dynamics (CFDTC); Micro and Nano Fluid Dynamics (MNFDTC), V002T04A015, August 3–5, 2022
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2022-87651
https://doi.org/10.1115/FEDSM2022-87651
View Paper titled, A Numerical Study on the Effect of Carrier Fluid Subgrid Scales Fluctuations on Deposition and Dispersion of Lagrangian Particles
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Topics: Fluctuations (Physics), Fluids, Particulate matter, Channel flow, Flow (Dynamics), Turbulence, Computer simulation, Engineering simulation, Friction, Large eddy simulation
Proceedings Papers

Investigation of Tool-Joint Effect on Non-Newtonian Drilling Fluids Following the Herschel–Bulkley Model Flow Behavior in Oil Well Drilling

Ardeshir Gholami, Zohreh Mansoori, Majid Saffar Aval, Goodarz Ahmadi
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T08A026, August 10–12, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2021-65577
https://doi.org/10.1115/FEDSM2021-65577
View Paper titled, Investigation of Tool-Joint Effect on Non-Newtonian Drilling Fluids Following the Herschel–Bulkley Model Flow Behavior in Oil Well Drilling
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Topics: Drilling, Flow (Dynamics), Fluids, Non-Newtonian fluids, Oil well drilling, Oil wells, Thixotropy
Proceedings Papers

Investigation of Proppant Distributions in Rock Fractures With Applications to Hydraulic Fracturing

Amir A. Mofakham, Farid Rousta, Dustin M. Crandall, Goodarz Ahmadi
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T08A028, August 10–12, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2021-65833
https://doi.org/10.1115/FEDSM2021-65833
View Paper titled, Investigation of Proppant Distributions in Rock Fractures With Applications to Hydraulic Fracturing
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Topics: Fracture (Materials), Fracture (Process), Hydraulic fracturing, Rocks, Computational fluid dynamics, Discrete element methods, Engineering simulation, Fluid dynamics, Simulation, Fluids
Proceedings Papers

Influence of Thermal Plume on Particle Inhalability of a Lying Mannequin in a Room

Maryam Habibi, Mohsen Heidary, Mohammad Mehdi Tavakol, Goodarz Ahmadi
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T08A016, August 10–12, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2021-65652
https://doi.org/10.1115/FEDSM2021-65652
View Paper titled, Influence of Thermal Plume on Particle Inhalability of a Lying Mannequin in a Room
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Topics: Particulate matter, Plumes (Fluid dynamics), Turbulence, Microparticles, Respiratory system, Computational fluid dynamics, Computer simulation, Computer software, Computerized tomography, Flow (Dynamics)
Proceedings Papers

Significance of Vocal Tract Geometrical Variations and Loudness on Airflow and Droplet Dispersion in a Two-Dimensional Representation of [F]

Amir A. Mofakham, Brian T. Helenbrook, Tanvir Ahmed, Byron D. Erath, Andrea R. Ferro, Deborah M. Brown, Goodarz Ahmadi
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T08A001, August 10–12, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2021-65485
https://doi.org/10.1115/FEDSM2021-65485
View Paper titled, Significance of Vocal Tract Geometrical Variations and Loudness on Airflow and Droplet Dispersion in a Two-Dimensional Representation of [F]
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Topics: Air flow, Drops, Loudness (Acoustics), Computer software, Dynamics (Mechanics), Computational fluid dynamics, Diseases, Engineering simulation, Flow (Dynamics), Lung
Proceedings Papers

Dispersion of Particles Coming Out of the Mouth While Speaking in a Ventilated Indoor Environment

Morteza Ali Masoomi, Mazyar Salmanzadeh, Goodarz Ahmadi
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T08A017, August 10–12, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2021-65837
https://doi.org/10.1115/FEDSM2021-65837
View Paper titled, Dispersion of Particles Coming Out of the Mouth While Speaking in a Ventilated Indoor Environment
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Topics: Particulate matter, Ventilation
Proceedings Papers

A New Approach for Response Analysis of Nonlinear Systems Under Random Excitations

Ismail I. Orabi, Goodarz Ahmadi
Proc. ASME. DETC91, 13th Biennial Conference on Mechanical Vibration and Noise: Vibration Analysis — Analytical and Computational, 147-151, September 22–25, 1991
Publisher: American Society of Mechanical Engineers
Paper No: DETC1991-0329
https://doi.org/10.1115/DETC1991-0329
View Paper titled, A New Approach for Response Analysis of Nonlinear Systems Under Random Excitations
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Topics: Nonlinear systems, Random excitation, Excitation, Computer simulation, Statistics
Proceedings Papers

Particle Transport and Deposition in a Ventilated Room With a Standing Mannequin

Mehrdad Azhdari, Mohammad Mehdi Tavakol, Goodarz Ahmadi
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T04A023, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20450
https://doi.org/10.1115/FEDSM2020-20450
View Paper titled, Particle Transport and Deposition in a Ventilated Room With a Standing Mannequin
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Topics: Particulate matter, Air flow, Dampers, Diffusers, Flow (Dynamics), Simulation results, Air conditioning, Computer simulation, Computer software, Density
Proceedings Papers

Improved DRW Model for Prediction of Deposition and Dispersion of Nano- and Micro-Particles in Turbulent Flows

Amir A. Mofakham, Goodarz Ahmadi
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T04A018, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20034
https://doi.org/10.1115/FEDSM2020-20034
View Paper titled, Improved DRW Model for Prediction of Deposition and Dispersion of Nano- and Micro-Particles in Turbulent Flows
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Topics: Flow (Dynamics), Microparticles, Particulate matter, Turbulence
Proceedings Papers

Computational Analysis of Fiber Dynamics in Human Nasal Cavity

Jiawei Ma, Jiyuan Tu, Lin Tian, Goodarz Ahmadi
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T04A019, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20035
https://doi.org/10.1115/FEDSM2020-20035
View Paper titled, Computational Analysis of Fiber Dynamics in Human Nasal Cavity
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Topics: Cavities, Dynamics (Mechanics), Fibers, Particulate matter, Rotation, Air flow, Engineering simulation, Polyester fibers, Simulation, Boundary-value problems
Proceedings Papers

A DNS Study of the Dispersion and Deposition of Nano- and Micro-Particles in a Turbulent Channel Flow

Amir A. Mofakham, Goodarz Ahmadi, John B. McLaughlin
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T04A020, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20110
https://doi.org/10.1115/FEDSM2020-20110
View Paper titled, A DNS Study of the Dispersion and Deposition of Nano- and Micro-Particles in a Turbulent Channel Flow
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Topics: Channel flow, Lift (Fluid dynamics), Microparticles, Turbulence
Proceedings Papers

Multiphase Flow Development on Single Particle Migration in Low Reynolds Number Fluid Domains

Mahyar Pourghasemi, Nima Fathi, Peter Vorobieff, Goodarz Ahmadi, Kevin R. Anderson
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T04A038, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20477
https://doi.org/10.1115/FEDSM2020-20477
View Paper titled, Multiphase Flow Development on Single Particle Migration in Low Reynolds Number Fluid Domains
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Topics: Fluids, Multiphase flow, Particulate matter, Reynolds number